mechta771

mechta771

Создан: 26.10.2018 08:15
Возраст: 20 лет
Вопросы: 32
Ответы: 75

Вопросы
YaKuss YaKuss  17.04.2019 07:30
Calculate the amount of substance corresponding to 9.8 g phosphoric acid H3PO4 ....
alexander124131 alexander124131  17.04.2019 07:30
Equal amounts of whether the substance contains 4 g of hydrogen gas and oxygen gas of 64 g ?...
Seasons1 Seasons1  17.04.2019 07:30
Identical do the amount of the substance contained in 44 g of CO2 and 2 g of hydrogen H2?...
mihailodnowal777 mihailodnowal777  17.04.2019 07:30
What proportion of moles is 1 g of hydrogen H2?...
Лиза5666 Лиза5666  17.04.2019 07:30
Identical to the number of substances contained in water, 18 and 17 g H2S?...
nadyushasukhan nadyushasukhan  17.04.2019 07:30
Determine the weight fraction of nitrogen in the mixture thereof with ammonia , if the volume fraction of nitrogen in the mixture is 10%....
Nastya1111113466 Nastya1111113466  17.04.2019 07:30
What proportion of mole are 71 g of sodium sulfate Na2SO4?...
Сергей34678899944 Сергей34678899944  17.04.2019 07:30
Determine the relative density of butane C4H9 hydrogen...
alskdjfhg123a alskdjfhg123a  17.04.2019 07:30
Determine the relative density of helium to hydrogen ....
jamikzara jamikzara  17.04.2019 07:30
A mixture of zinc oxide and zinc weight 8,525 g was treated with excess hydrochloric acid, wherein stood 2,24 liters of gas (normal conditions...

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